Here's the thing. A 'community' will always have different kinds and types of people from different backgrounds. They will have different beliefs, preferences, and tastes.
So naturally that's going to bring in the good and the bad. It's pretty unavoidable. As the car gets older and into more hands the forum population will change, for better or for worse.
Personally I think it's going to trend towards the latter
you can already see it in some threads.